The present invention relates to a needle module, which comprises a piercing means on a mounting, which can be releasably coupled to the drive unit so that, as a result of a driving force exerted by the drive unit on the mounting, a repeated pushing movement moving the piercing means in and out is transmitted, wherein, according to the invention, the mounting has a safety device which mechanically irreversibly blocks the piercing means after the needle module has been released from the drive unit so that it can no longer be moved out of the needle module. The invention also relates to a device, in particular a hand device, for piercing the skin, comprising a drive unit and the needle module according to the invention.
